382
FNCA52 TJSJ 091930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST THU APR 9 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-100800-
SOUTHEAST COASTAL PLAINS-
330 PM AST THU APR 9 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 10 10 0 20
TEMP (24H TREND) 71 (-3) 88 (+2) 70 88
RH % (24H TREND) 91 (+1) 49 (-11) 93 52
WIND 20FT/EARLY(MPH) E 12 E 16 E 11 E 12
WIND 20FT/LATE(MPH) E 12 SE 16 NE 10 SE 18
MIXING HGT(FT-AGL/MSL) 4780 4480
TRANSPORT WND (MPH) E 15 E 13
VENT RATE (KT-FT) 62140 49280
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-100800-
SOUTHERN HILLS-
330 PM AST THU APR 9 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 20 0 20
TEMP (24H TREND) 67 (-4) 84 (+2) 67 84
RH % (24H TREND) 98 (+4) 61 (-11) 98 63
WIND 20FT/EARLY(MPH) E 11 E 11 E 10 E 10
WIND 20FT/LATE(MPH) E 11 SE 11 E 10 SE 13
MIXING HGT(FT-AGL/MSL) 5070 5430
TRANSPORT WND (MPH) E 13 E 12
VENT RATE (KT-FT) 55770 54300
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-100800-
NORTH COASTAL PLAINS-
330 PM AST THU APR 9 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 20 10 30
TEMP (24H TREND) 70 (-3) 88 (+1) 69 87
RH % (24H TREND) 99 (+3) 59 (-7) 100 61
WIND 20FT/EARLY(MPH) E 12 E 13 E 12 E 11
WIND 20FT/LATE(MPH) E 10 E 17 E 9 E 17
MIXING HGT(FT-AGL/MSL) 4980 4680
TRANSPORT WND (MPH) E 14 E 10
VENT RATE (KT-FT) 59760 42120
DISPERSION 5 5
DSI 5 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-100800-
NORTHERN HILLS-
330 PM AST THU APR 9 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 0 50 0 50
TEMP (24H TREND) 68 (-3) 87 (+1) 67 86
RH % (24H TREND) 98 (+2) 60 (-5) 99 62
WIND 20FT/EARLY(MPH) E 11 E 10 E 10 E 10
WIND 20FT/LATE(MPH) E 9 E 13 E 5 E 13
MIXING HGT(FT-AGL/MSL) 5380 5830
TRANSPORT WND (MPH) E 9 E 8
VENT RATE (KT-FT) 43040 40810
DISPERSION 5 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-100800-
WEST COAST-
330 PM AST THU APR 9 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY CLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS NONE TSTMS
CHANCE PRECIP (%) 30 50 0 40
TEMP (24H TREND) 70 (-2) 89 (+1) 68 88
RH % (24H TREND) 98 (+2) 58 (-7) 99 60
WIND 20FT/EARLY(MPH) SE 11 E 12 E 9 E 11
WIND 20FT/LATE(MPH) E 12 E 12 E 9 E 12
MIXING HGT(FT-AGL/MSL) 4840 4930
TRANSPORT WND (MPH) E 8 E 7
VENT RATE (KT-FT) 33880 29580
DISPERSION 5 5
DSI 4 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-100800-
EASTERN INTERIOR-
330 PM AST THU APR 9 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 20 20
TEMP (24H TREND) 69 (-3) 85 (+1) 68 85
RH % (24H TREND) 99 (+3) 62 (-7) 99 63
WIND 20FT/EARLY(MPH) E 12 E 12 E 11 E 11
WIND 20FT/LATE(MPH) E 11 SE 12 E 11 E 12
MIXING HGT(FT-AGL/MSL) 5470 5400
TRANSPORT WND (MPH) SE 14 E 12
VENT RATE (KT-FT) 65640 54000
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-100800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST THU APR 9 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 40 30
TEMP (24H TREND) 67 (-3) 81 (+3) 66 81
RH % (24H TREND) 100 (+1) 69 (-9) 100 70
WIND 20FT/EARLY(MPH) E 10 E 11 E 9 E 10
WIND 20FT/LATE(MPH) E 9 SE 11 E 9 E 11
MIXING HGT(FT-AGL/MSL) 4770 4400
TRANSPORT WND (MPH) SE 15 E 13
VENT RATE (KT-FT) 62010 48400
DISPERSION 5 5
DSI 4 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-100800-
CENTRAL MOUNTAIN RANGE-
330 PM AST THU APR 9 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY CLEAR PCLDY
PRECIP TYPE NONE SHOWERS NONE TSTMS
CHANCE PRECIP (%) 0 60 0 50
TEMP (24H TREND) 65 (-4) 84 (+3) 64 84
RH % (24H TREND) 99 (+3) 62 (-10) 100 64
WIND 20FT/EARLY(MPH) SE 8 E 9 E 5 E 8
WIND 20FT/LATE(MPH) E 8 SE 9 E 5 E 9
MIXING HGT(FT-AGL/MSL) 6040 6530
TRANSPORT WND (MPH) E 6 E 7
VENT RATE (KT-FT) 30200 39180
DISPERSION 5 5
DSI 2 5 1 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-100800-
CAYEY MOUNTAIN RANGE-
330 PM AST THU APR 9 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 30 0 10 20
TEMP (24H TREND) 68 (-3) 81 (+2) 67 81
RH % (24H TREND) 100 (+1) 68 (-9) 100 70
WIND 20FT/EARLY(MPH) E 9 E 10 E 8 E 9
WIND 20FT/LATE(MPH) E 9 E 10 E 8 E 11
MIXING HGT(FT-AGL/MSL) 4880 4950
TRANSPORT WND (MPH) E 15 E 12
VENT RATE (KT-FT) 63440 49500
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-100800-
VIEQUES-
330 PM AST THU APR 9 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 30 30
TEMP (24H TREND) 73 (-2) 85 (0) 72 85
RH % (24H TREND) 93 (+1) 62 (-4) 93 62
WIND 20FT/EARLY(MPH) E 14 E 14 E 13 E 13
WIND 20FT/LATE(MPH) E 14 E 12 E 13 E 13
MIXING HGT(FT-AGL/MSL) 3660 2820
TRANSPORT WND (MPH) E 17 E 16
VENT RATE (KT-FT) 54900 39480
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-100800-
CULEBRA-
330 PM AST THU APR 9 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 40 20
TEMP (24H TREND) 74 (-2) 87 (+1) 74 86
RH % (24H TREND) 94 (+2) 61 (-7) 95 62
WIND 20FT/EARLY(MPH) E 14 E 14 E 13 E 13
WIND 20FT/LATE(MPH) E 14 E 12 E 13 E 12
MIXING HGT(FT-AGL/MSL) 3740 2830
TRANSPORT WND (MPH) E 18 E 15
VENT RATE (KT-FT) 59840 36790
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-100800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST THU APR 9 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR CLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 30 10 0 20
TEMP (24H TREND) 71 (-3) 89 (+1) 70 89
RH % (24H TREND) 95 (+3) 48 (-9) 96 51
WIND 20FT/EARLY(MPH) E 16 E 18 E 13 E 16
WIND 20FT/LATE(MPH) E 16 SE 18 E 12 SE 18
MIXING HGT(FT-AGL/MSL) 4830 5120
TRANSPORT WND (MPH) E 16 E 14
VENT RATE (KT-FT) 67620 61440
DISPERSION 5 5
DSI 5 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-100800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST THU APR 9 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 30 20
TEMP (24H TREND) 73 (-3) 85 (0) 73 85
RH % (24H TREND) 94 (+3) 62 (-4) 96 61
WIND 20FT/EARLY(MPH) E 14 E 16 E 14 E 13
WIND 20FT/LATE(MPH) E 16 E 13 E 14 E 13
MIXING HGT(FT-AGL/MSL) 3500 2870
TRANSPORT WND (MPH) E 18 E 16
VENT RATE (KT-FT) 56000 40180
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-100800-
ST CROIX-
330 PM AST THU APR 9 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 30 20
TEMP (24H TREND) 72 (-4) 86 (+1) 72 86
RH % (24H TREND) 94 (+3) 62 (-6) 96 62
WIND 20FT/EARLY(MPH) E 13 E 14 E 14 E 13
WIND 20FT/LATE(MPH) E 14 E 13 E 14 E 13
MIXING HGT(FT-AGL/MSL) 4630 4420
TRANSPORT WND (MPH) E 18 E 16
VENT RATE (KT-FT) 74080 61880
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page